Ivory-billed Woodpecker (Campephilus principalis)
At 19.5 inches (50 cm), the ivory-billed woodpecker is the largest of the North American woodpeckers -- about the size of a crow. A red crest marks the male; females have a black crest. Both have a white stripe on the side of the head.
The link address is: http://warnell.forestry.uga.edu/service/library/index.php3?docID=88&docHistory%5B%5D=5&docHistory%5B%5D=202&docHistory%5B%5D=361